Adapt to new GraalVM metadata format

This commit updates our web resources patterns due to a change in the
GraalVM metadata format. Previously a single `*` was considering a
directory and its sub-folders. The same behavior now requires two `*`.

Closes gh-47894

Author: snicoll

core/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/WebResourcesRuntimeHints.java

@@ -39,7 +39,7 @@ public void registerHints(RuntimeHints hints, @Nullable ClassLoader classLoader)
 		ClassLoader classLoaderToUse = (classLoader != null) ? classLoader : getClass().getClassLoader();
 		String[] locations = DEFAULT_LOCATIONS.stream()
 			.filter((candidate) -> classLoaderToUse.getResource(candidate) != null)
-			.map((location) -> location + "*")
+			.map((location) -> location + "**")
 			.toArray(String[]::new);
 		if (locations.length > 0) {
 			hints.resources().registerPattern((hint) -> hint.includes(locations));

core/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/WebResourcesRuntimeHintsTests.java

@@ -44,13 +44,13 @@ void registerHintsWithAllLocations() {
 		RuntimeHints hints = register(
 				new TestClassLoader(List.of("META-INF/resources/", "resources/", "static/", "public/")));
 		assertThat(hints.resources().resourcePatternHints()).singleElement()
-			.satisfies(include("META-INF/resources/*", "resources/*", "static/*", "public/*"));
+			.satisfies(include("META-INF/resources/**", "resources/**", "static/**", "public/**"));
 	}
 
 	@Test
 	void registerHintsWithOnlyStaticLocations() {
 		RuntimeHints hints = register(new TestClassLoader(List.of("static/")));
-		assertThat(hints.resources().resourcePatternHints()).singleElement().satisfies(include("static/*"));
+		assertThat(hints.resources().resourcePatternHints()).singleElement().satisfies(include("static/**"));
 	}
 
 	@Test